I've had the same problems. Dof keep suggesting targets from all over the world and draining the budget. In a new save I was dead set on not using a dog because of this. Instead my assistant managers keep giving target suggestion and again draining my budget.
Mad as **** I started looking for why this was, and I think I found it.
Go to staff, responsibilities, advice and reports. At the top there are three roll downs. Analyst reports, staff meeting and... player target frequency. It's set on every week, I changed it to never. And now I don't get any more expensive reports.
EDIT: It didnt work. Assistant manager is still doing his own thing and draining the scouting budget.